-# serial 19
+# serial 26
-# Copyright (C) 2001, 2003, 2005, 2006, 2009 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003, 2005-2006, 2009-2013 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
[
AC_REQUIRE([AC_CANONICAL_HOST])
AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+ AC_CHECK_FUNCS_ONCE([lstat])
- dnl Solaris 10 mistakenly allows rename("file","name/").
+ dnl Solaris 10, AIX 7.1 mistakenly allow rename("file","name/").
dnl NetBSD 1.6 mistakenly forbids rename("dir","name/").
+ dnl FreeBSD 7.2 mistakenly allows rename("file","link-to-file/").
dnl The Solaris bug can be worked around without stripping
dnl trailing slash, while the NetBSD bug requires stripping;
dnl the two conditions can be distinguished by whether hard
dnl links are also broken.
AC_CACHE_CHECK([whether rename honors trailing slash on destination],
[gl_cv_func_rename_slash_dst_works],
- [rm -rf conftest.f conftest.f1 conftest.d1 conftest.d2
- touch conftest.f && mkdir conftest.d1 ||
+ [rm -rf conftest.f conftest.f1 conftest.f2 conftest.d1 conftest.d2 conftest.lnk
+ touch conftest.f && touch conftest.f1 && mkdir conftest.d1 ||
AC_MSG_ERROR([cannot create temporary files])
- AC_RUN_IFELSE([AC_LANG_PROGRAM([[
-# include <stdio.h>
-# include <stdlib.h>
-]], [if (rename ("conftest.f", "conftest.f1/") == 0) return 1;
- if (rename ("conftest.d1", "conftest.d2/") != 0) return 2;])],
+ # Assume that if we have lstat, we can also check symlinks.
+ if test $ac_cv_func_lstat = yes; then
+ ln -s conftest.f conftest.lnk
+ fi
+ AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([[
+# include <stdio.h>
+# include <stdlib.h>
+ ]],
+ [[int result = 0;
+ if (rename ("conftest.f1", "conftest.f2/") == 0)
+ result |= 1;
+ if (rename ("conftest.d1", "conftest.d2/") != 0)
+ result |= 2;
+#if HAVE_LSTAT
+ if (rename ("conftest.f", "conftest.lnk/") == 0)
+ result |= 4;
+#endif
+ return result;
+ ]])],
[gl_cv_func_rename_slash_dst_works=yes],
[gl_cv_func_rename_slash_dst_works=no],
dnl When crosscompiling, assume rename is broken.
- [gl_cv_func_rename_slash_dst_works="guessing no"])
- rm -rf conftest.f conftest.f1 conftest.d1 conftest.d2
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_rename_slash_dst_works="guessing yes" ;;
+ # If we don't know, assume the worst.
+ *) gl_cv_func_rename_slash_dst_works="guessing no" ;;
+ esac
+ ])
+ rm -rf conftest.f conftest.f1 conftest.f2 conftest.d1 conftest.d2 conftest.lnk
])
- if test "x$gl_cv_func_rename_slash_dst_works" != xyes; then
- AC_LIBOBJ([rename])
- REPLACE_RENAME=1
- AC_DEFINE([RENAME_TRAILING_SLASH_DEST_BUG], [1],
- [Define if rename does not correctly handle slashes on the destination
- argument, such as on Solaris 10 or NetBSD 1.6.])
- fi
+ case "$gl_cv_func_rename_slash_dst_works" in
+ *yes) ;;
+ *)
+ REPLACE_RENAME=1
+ AC_DEFINE([RENAME_TRAILING_SLASH_DEST_BUG], [1],
+ [Define if rename does not correctly handle slashes on the destination
+ argument, such as on Solaris 10 or NetBSD 1.6.])
+ ;;
+ esac
dnl SunOS 4.1.1_U1 mistakenly forbids rename("dir/","name").
dnl Solaris 9 mistakenly allows rename("file/","name").
+ dnl FreeBSD 7.2 mistakenly allows rename("link-to-file/","name").
dnl These bugs require stripping trailing slash to avoid corrupting
dnl symlinks with a trailing slash.
AC_CACHE_CHECK([whether rename honors trailing slash on source],
[gl_cv_func_rename_slash_src_works],
- [rm -rf conftest.f conftest.d1 conftest.d2
- touch conftest.f && mkdir conftest.d1 ||
+ [rm -rf conftest.f conftest.f1 conftest.d1 conftest.d2 conftest.d3 conftest.lnk
+ touch conftest.f && touch conftest.f1 && mkdir conftest.d1 ||
AC_MSG_ERROR([cannot create temporary files])
- AC_RUN_IFELSE([AC_LANG_PROGRAM([[
-# include <stdio.h>
-# include <stdlib.h>
-]], [if (rename ("conftest.f/", "conftest.d2") == 0) return 1;
- if (rename ("conftest.d1/", "conftest.d2") != 0) return 2;])],
+ # Assume that if we have lstat, we can also check symlinks.
+ if test $ac_cv_func_lstat = yes; then
+ ln -s conftest.f conftest.lnk
+ fi
+ AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([[
+# include <stdio.h>
+# include <stdlib.h>
+ ]],
+ [[int result = 0;
+ if (rename ("conftest.f1/", "conftest.d3") == 0)
+ result |= 1;
+ if (rename ("conftest.d1/", "conftest.d2") != 0)
+ result |= 2;
+#if HAVE_LSTAT
+ if (rename ("conftest.lnk/", "conftest.f") == 0)
+ result |= 4;
+#endif
+ return result;
+ ]])],
[gl_cv_func_rename_slash_src_works=yes],
[gl_cv_func_rename_slash_src_works=no],
dnl When crosscompiling, assume rename is broken.
- [gl_cv_func_rename_slash_src_works="guessing no"])
- rm -rf conftest.f conftest.d1 conftest.d2
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_rename_slash_src_works="guessing yes" ;;
+ # If we don't know, assume the worst.
+ *) gl_cv_func_rename_slash_src_works="guessing no" ;;
+ esac
+ ])
+ rm -rf conftest.f conftest.f1 conftest.d1 conftest.d2 conftest.d3 conftest.lnk
])
- if test "x$gl_cv_func_rename_slash_src_works" != xyes; then
- AC_LIBOBJ([rename])
- REPLACE_RENAME=1
- AC_DEFINE([RENAME_TRAILING_SLASH_SOURCE_BUG], [1],
- [Define if rename does not correctly handle slashes on the source
- argument, such as on Solaris 9 or cygwin 1.5.])
- fi
+ case "$gl_cv_func_rename_slash_src_works" in
+ *yes) ;;
+ *)
+ REPLACE_RENAME=1
+ AC_DEFINE([RENAME_TRAILING_SLASH_SOURCE_BUG], [1],
+ [Define if rename does not correctly handle slashes on the source
+ argument, such as on Solaris 9 or cygwin 1.5.])
+ ;;
+ esac
+
+ dnl NetBSD 1.6 and cygwin 1.5.x mistakenly reduce hard link count
+ dnl on rename("h1","h2").
+ dnl This bug requires stat'ting targets prior to attempting rename.
+ AC_CHECK_FUNCS_ONCE([link])
+ AC_CACHE_CHECK([whether rename manages hard links correctly],
+ [gl_cv_func_rename_link_works],
+ [if test $ac_cv_func_link = yes; then
+ rm -rf conftest.f conftest.f1
+ if touch conftest.f && ln conftest.f conftest.f1 &&
+ set x `ls -i conftest.f conftest.f1` && test "$2" = "$4"; then
+ AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([[
+# include <stdio.h>
+# include <stdlib.h>
+# include <unistd.h>
+ ]],
+ [[int result = 0;
+ if (rename ("conftest.f", "conftest.f1"))
+ result |= 1;
+ if (unlink ("conftest.f1"))
+ result |= 2;
+ if (rename ("conftest.f", "conftest.f"))
+ result |= 4;
+ if (rename ("conftest.f1", "conftest.f1") == 0)
+ result |= 8;
+ return result;
+ ]])],
+ [gl_cv_func_rename_link_works=yes],
+ [gl_cv_func_rename_link_works=no],
+ dnl When crosscompiling, assume rename is broken.
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_rename_link_works="guessing yes" ;;
+ # If we don't know, assume the worst.
+ *) gl_cv_func_rename_link_works="guessing no" ;;
+ esac
+ ])
+ else
+ gl_cv_func_rename_link_works="guessing no"
+ fi
+ rm -rf conftest.f conftest.f1
+ else
+ gl_cv_func_rename_link_works=yes
+ fi
+ ])
+ case "$gl_cv_func_rename_link_works" in
+ *yes) ;;
+ *)
+ REPLACE_RENAME=1
+ AC_DEFINE([RENAME_HARD_LINK_BUG], [1],
+ [Define if rename fails to leave hard links alone, as on NetBSD 1.6
+ or Cygwin 1.5.])
+ ;;
+ esac
- dnl NetBSD 1.6 mistakenly reduces hard link count on rename("h1","h2").
dnl Cygwin 1.5.x mistakenly allows rename("dir","file").
dnl mingw mistakenly forbids rename("dir1","dir2").
dnl These bugs require stripping trailing slash to avoid corrupting
[rm -rf conftest.f conftest.d1 conftest.d2
touch conftest.f && mkdir conftest.d1 conftest.d2 ||
AC_MSG_ERROR([cannot create temporary files])
- if ln conftest.f conftest.f1 && set x `ls -i conftest.f conftest.f1` &&
- test "$2" = "$4"; then
- AC_RUN_IFELSE([AC_LANG_PROGRAM([[
-# include <stdio.h>
-# include <stdlib.h>
-]], [if (rename ("conftest.d1", "conftest.d2") != 0) return 1;
- if (rename ("conftest.d2", "conftest.f") == 0) return 2;
- if (rename ("conftest.f", "conftest.f1")
- || rename ("conftest.f", "conftest.f")) return 3;])],
- [gl_cv_func_rename_dest_works=yes],
- [gl_cv_func_rename_dest_works=no],
- dnl When crosscompiling, assume rename is broken.
- [gl_cv_func_rename_dest_works="guessing no"])
- else
- gl_cv_func_rename_dest_works="guessing no"
- fi
- rm -rf conftest.f conftest.f1 conftest.d1 conftest.d2
+ AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([[
+# include <stdio.h>
+# include <stdlib.h>
+ ]],
+ [[int result = 0;
+ if (rename ("conftest.d1", "conftest.d2") != 0)
+ result |= 1;
+ if (rename ("conftest.d2", "conftest.f") == 0)
+ result |= 2;
+ return result;
+ ]])],
+ [gl_cv_func_rename_dest_works=yes],
+ [gl_cv_func_rename_dest_works=no],
+ dnl When crosscompiling, assume rename is broken.
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_rename_dest_works="guessing yes" ;;
+ # If we don't know, assume the worst.
+ *) gl_cv_func_rename_dest_works="guessing no" ;;
+ esac
+ ])
+ rm -rf conftest.f conftest.d1 conftest.d2
])
- if test "x$gl_cv_func_rename_dest_works" != xyes; then
- AC_LIBOBJ([rename])
- REPLACE_RENAME=1
- AC_DEFINE([RENAME_DEST_EXISTS_BUG], [1],
- [Define if rename does not work when the destination file exists,
- as with NetBSD 1.6 on hard links, or Windows on directories.])
- fi
+ case "$gl_cv_func_rename_dest_works" in
+ *yes) ;;
+ *)
+ REPLACE_RENAME=1
+ AC_DEFINE([RENAME_DEST_EXISTS_BUG], [1],
+ [Define if rename does not work when the destination file exists,
+ as on Cygwin 1.5 or Windows.])
+ ;;
+ esac
])
projects / gnulib.git / blobdiff